#include "comm.hpp"

#include<sys/wait.h>

static void getMessage(int fd)
{
    char buffer[SIZE];

    while(1)
    {
        memset(buffer,0,sizeof(buffer));
        ssize_t s = read(fd,buffer,sizeof(buffer)-1);

        if(s > 0)
        {
            cout<<"["  << getpid() << "] "<< "client say> " << buffer << endl;
        }
        else if(s==0)
        {
            cerr <<"["  << getpid() << "] " << "read end of file, clien quit, server quit too!" << endl;
            break;
        }
        else 
        {
            perror("read");
            break;
        }
    }
}

int main()
{
    if(mkfifo(ipcPath.c_str(),MODE))
    {
        perror("mkfifo");
        exit(1);
    }
    Log("创建管道文件成功",Debug)<<"step 1"<<endl;

    int fd = open(ipcPath.c_str(),O_RDONLY);
    
    if(fd<0)
    {
        perror("open");
        exit(2);
    }
    Log("打开管道文件成功",Debug)<<"step 2"<<endl;

    int nums = 3;
    for(int i = 0;i<nums;i++)
    {
        pid_t id = fork();
        if(id == 0)
        {
            // 3. 编写正常的通信代码了
            getMessage(fd);
            exit(1);
        }
    }

    for(int i = 0;i<nums;i++)
    {
        waitpid(-1,nullptr,0);
    }
    close(fd);
    Log("关闭管道文件成功", Debug) << " step 3" << endl;

    unlink(ipcPath.c_str());
     Log("删除管道文件成功", Debug) << " step 4" << endl;


    return 0;
}
